Digital Commons Network^™

Current And Future Applications Of Surface Engineering, David Kennedy, Yueqiang Xue, Emilia Mihaylova

Articles

No abstract provided.

Micro Shot Blasting Of Machine Tools For Improving Surface Finish And Reducing Cutting Forces In Manufacturing, James Vahey, David Kennedy

Articles

Micro blasting of cutting tips and tools is a very effective and reliable method of advancing the life of tools under the action of turning, milling, drilling, punching and cutting. This paper outlines the ways in which micro blasted tools, both coated and un coated have benefited from shot blasting and resulted in greater productivity, lower cutting forces, improved surface finish of the work pieces and less machine downtime. The process of micro blasting is discussed in the paper. Its effectiveness depends on many parameters including the shot media ad size, the mechanics of impact and the application of the …

Development And Performance Characteristics Of An Ultrasound Angioplasty Device, Graham Gavin, Garrett Mcguinness, Finbar Dolan, M.S. J. Hashmi

Conference Papers

INTRODUCTION The effect of atherosclerosis is well documented and many procedures such as balloon angioplasty and stentimplantation have been developed to reopen occluded arteries. However, there are considerable differences in the material properties of various atherosclerotic lesions as they develop. Many authors have suggested that rigid calcified plaques may require specific procedures that target this rigid material through de-bulking or complete removal (Salunke et al, 1997). Ultrasound angioplasty is the delivery of high power low frequency ultrasound via a wire waveguide to the lesion location. This results in distal tip wire displacements of up to 100um peak-to-peak (p-p) at frequencies …

Harding University Graduate Catalog 2005-2006, Harding University

Harding Academic Catalogs

Academic catalog for the graduate programs at Harding University.

Harding University Course Catalog 2005-2006, Harding University

Harding Academic Catalogs

Academic catalog for the undergraduate programs at Harding University.

Real-Time Reverse Transcription Pcr For Detection And Quantitative Analysis Of Equine Influenza Virus., Michelle Quinlivan, Eugene Dempsey, Fergus Ryan, Sean Arkins, Ann Cullinnane

Articles

Equine influenza is a cause of epizootic respiratory disease of the equine. The detection of equine influenza virus using real-time Light Cycler reverse transcription (RT)-PCR technology was evaluated over two influenza seasons with the analysis of 171 samples submitted for viral respiratory disease. Increased sensitivity was found in overall viral detection with this system compared to Directigen Flu A and virus isolation, which were 40% and 23%, respectively, that of the RT-PCR. The assay was also evaluated as a viable replacement for the more traditional methods of quantifying equine influenza virus, 50% egg infectious dose and 50% tissue culture infectious …

Characterisation Of An Acrylamide-Based Photopolymer For Data Storage Utilizing Holographic Angular Multiplexing, Hosam Sherif, Izabela Naydenova, Suzanne Martin, Colm Mcginn, Vincent Toal

Articles

An acrylamide-based photopolymer formulated in the Centre for Industrial and Engineering Optics has been investigated with a view to further optimisation for holographic optical storage. Series of 18 to 30 gratings were angularly multiplexed in a volume of photopolymer layer at a spatial frequency of 1500 lines/mm. Since the photopolymer is a saturable material, an exposure scheduling method was used to exploit the entire dynamic range of the material and allow equal strength holographic gratings to be recorded. This investigation yielded the photopolymer M/# for moderately thin layers. Photopolymer temporal stability was also studied by measuring variations of material shrinkage, …

Holographic Patterning Of Acrylamide-Based Photopolymer Surface, Izabela Naydenova, Emilia Mihaylova, Suzanne Martin, Vincent Toal

Articles

The patterning of an acrylamide-based photopolymer surface by holographic recording is studied. The patterns are induced by light alone and no post-processing is required. Periodic surface modulation is observed in addition to a volume phase grating. An investigation has been carried out using white light interferometry into the dependence of the amplitude of the photo induced surface relief modulation on the spatial frequency, intensity of recording and sample thickness. The observed dependencies indicate that the diffusion of material during the holographic recording plays a major role in surface relief formation. The possibility for inscription of surface relief patterns opens the …

Modernization Of The Hilger And Watts Guage-Block Interferometer, Michael O'Hora, Brian Bowe, Vincent Toal, Sean Peyton

Articles

The Hilger & Watts gauge-block interferometer was designed and manufactured commercially in the 1950s. The instrument uses isotope lamps as wavelength standards to perform absolute length calibration of gauge blocks (slip gauges) up to 100 mm in length, to an accuracy of approximately 1 ppm. It is entirely manually operated. In order to make the instrument more suitable for the modern laboratory, new hardware has been added, and a customized software package developed to automate the measurement process. This paper shows how interferograms may be imaged successfully at each of the eight available wavelengths, and the critical fringe fraction measurement …

Common Data Set, 2004-2005, Planning, Research, And Policy Analysis

Common Data Set (2001-present)

Common Data Set 2004-2005 for Illinois state University

The Pioneer, Vol. 10, No. 1, Winter 2005, Illinois State University, College Of Education

The Pioneer (alumni newsletter)

Alumni Newsletter for University High School, College of Education

Oil & Gas Law - Royalty Dethroned: Wyoming's Approach To Gathering Costs, Rickey Turner

Wyoming Law Review

No abstract provided.

Foreward: The Federal Circuit In Perspective, Pauline Newman

American University Law Review

No abstract provided.

2005-2006 Graduate Catalog, Armstrong Atalntic State University

Armstrong Office of the Registrar: Graduate Catalogs (Archived)

Academic catalog for Armstrong Atlantic State University.

2005 - 2006 Undergraduate Catalog, Armstrong Atlantic State University

Armstrong Office of the Registrar: Undergraduate Catalogs (Archived)

Academic catalog for Armstrong Atlantic State University.

Southern Educator, Georgia Southern University

College of Education: News & Publications (2003-2023)

• Homecoming Lecture
• COE Faculty Awards Presented
• Georgia Southern Visits China
• Education Career Corner
• COE Soaring Into Action
• Welcome New Faculty/Staff
• Spotlight on Alumni
• Southern Educator Class Roll
• Georgia Center for Educational Renewal First Year Report–Winning Grants and Awards, Reviewing Research, and Developing Instructional Materials
• Partnering for Portal
• 2005-2006 COE Faculty and Staff

Faculty Senate Librarian's Report-2005, Georgia Southern University

Faculty Senate: Librarian's Reports

No abstract provided.

Faculty Handbook, Georgia Southern University

Faculty Handbooks

Faculty Handbook for Georgia Southern University for the 2005-2006 academic year. The Faculty Handbook is published online by the Office of the Vice President for Academic Affairs and archived in Digital Commons@Georgia Southern.

Low-Level Windshear And Its Impact On Airlines, Wayne L. Golding

Journal of Aviation/Aerospace Education & Research

The hazards posed by low-level windshear are an important issue in commercial aviation. Extensive research into methods for coping with low-level windshear has been continuing for many years. This paper addresses the issues pertaining to low-level wind shear causes, impact on commercial aviation, and initiatives undertaken to prevent low-level windshear mishaps today and in the future.

Study Of The Electronic Structure Of Cafeo₃, Jinbo Yang, M. S. Kim, Qingsheng Cai, X.-D. Zhou, Harlan U. Anderson, William Joseph James, William B. Yelon

Materials Science and Engineering Faculty Research & Creative Works

We have studied the charge disproportionation phenomenon in CaFeO3 using the local-spin density approximation with the on-site Coulomb interaction parameter U and exchange parameter J. The calculation reveals that the total number of the 3d electrons is about 5.1 for both Fe(1)(Fe5+) and Fe(2)(Fe3+) atoms, and that there are about 0.25 electron holes in the O-2p band. Therefore, the charge disproportionation can be more accurately described as 2d5L(Fe4+)=d5L2(Fe5+)+d5(Fe3+), where L denotes a hole in the oxygen 2p band, instead of 2d4(Fe4+)=d3(Fe5+)+d5(Fe3+). The hybridization between the Fe-3d and O-2p orbitals is stronger for Fe(1) than for Fe(2) due to the shorter …

The Decline Of The Juvenile Death Penalty: Scientific Evidence Of Evolving Norms, Jeffery Fagan

Faculty Scholarship

Shortly after the U.S. Supreme Court issued its decision in Atkins v. Virginia holding that the execution of mentally retarded persons violated the Eighth Amendment, legal scholars, advocates, and journalists began to speculate that the Court would next turn its attention to the question of the execution of persons who were juveniles – below eighteen years of age – at the time they committed homicide. Following the Atkins decision, four Justices expressed the view that the rationale of Atkins also supported the conclusion that execution of juvenile offenders was unconstitutional. A constitutional test of capital punishment for juveniles was inevitable. …

Cover And Contents

Turkish Journal of Medical Sciences

No abstract provided.

Approaches Toward Integrating Functionality Into Structural Materials, Rajiv S. Mishra

Materials Science and Engineering Faculty Research & Creative Works

No abstract provided.

P-Version Time-Discontinuous Galerkin's Method For Nonlinear Transient Heat Transfer Analysis And Sensitivity Analysis, Ta-Cheng Chien

Mechanical & Aerospace Engineering Theses & Dissertations

The finite element method is a powerful tool for approximating the solution of most engineering problems. Traditionally, the finite element method uses linear approximation of field variables over each element, where numerical results converge to the exact solution by increasing the number of elements. A newer finite element method called the p-version finite element method uses higher-order elements which assume a polynomial of order p for the approximation on each element. Here, the approximation will achieve accuracy without increasing the number of elements but by increasing the value of order p.

The focus of this research is on …

Delineation Of The Fractured-Rock And Unconsolidated Overburden Ground-Water Flow Systems, On The Southern Part Of Manhattan, New York, Through Use Of Advanced Borehole-Geophysical Techniques, Frederick Stumm

Dissertations, Theses, and Capstone Projects

Advanced borehole-geophysical techniques were used to assess the geohydrology of crystalline bedrock in 31 of 64 boreholes on the southern part of Manhattan Island, N.Y. Ten wells were screened in the unconsolidated overburden (glacial aquifer) to determine water-table elevation, transmissivity, and chloride concentration. The borehole-logging techniques included natural gamma, single-point resistance, short-normal resistivity, mechanical and acoustic caliper, magnetic susceptibility, borehole-fluid temperature and resistivity, borehole-fluid specific conductance, dissolved oxygen, pH, redox, heat-pulse flowmeter (at selected boreholes), borehole deviation, acoustic and optical televiewer, and borehole radar (at selected boreholes). The boreholes penetrated gneiss, schist, and other crystalline bedrock that has an overall …

The Properties Of Bridgestone Ecopia Solar Car Tires (For The Umr Solar Car Team), Tessa C. Russell

Opportunities for Undergraduate Research Experience Program (OURE)

Much of the energy used by a solar car can be attributed to overcoming rolling resistance, and rolling resistance comes predominantly from the tires. The main goal of this project was to better understand the properties of the Bridgestone Ecopia tires used by the UMR Solar Car Team. Experiments were conducted to obtain this objective, measuring the vertical stiffness, lateral stiffness, and contact patch shape and area. As expected, with decreasing pressure and increasing load, the vertical and lateral deflections increased as well as the tire contact patch area. The stiffness parameters of the tire measured experimentally were used in …

Student Time Management: Student Characteristics Comparison Between Traditional Coursework And Extracurricular Activities, Andreew Ricke

Opportunities for Undergraduate Research Experience Program (OURE)

The trend that extracurricular activities and organizations are important to a college student is increasing. Many students are active in at least one activity or organization outside of class. These activities at the University of Missouri-Rolla range from design competition teams to professional societies, to non-varsity sports, and to special interest's groups Do students who have a high interest in education and learning find these activities more important than their coursework? What other traits could affect preference away from traditional coursework towards non-traditional extracurricular activities? Examination of selected traits could lead us to finding trends of preferences.

Minimum Splice Length For Fiber Reinforced Polymer (Frp) Reinforcement In Concrete Applications, Trevor J. Acorn

Opportunities for Undergraduate Research Experience Program (OURE)

Given the complexity of engineering and the need for inexpensive solutions in modern structures it is necessary to lay out a system of codes and regulations which govern the design and construction of these structures. For concrete applications the ACI codebook is used by engineers and contractors to efficiently design concrete structures that are both safe and economical. This codebook is by far the most popular design aid, and it is constantly being updated and improved to meet the growing needs of our modem society.

In the past decade FRP applications in concrete have increased in popularity and demand due …

Design, Simulation, And Testing Of Three Unmanned Aerial Vehicles For Short Range Surveillance Applications, Tim Assel

Opportunities for Undergraduate Research Experience Program (OURE)

This paper presents conceptual designs of three Unmanned Aerial Vehicles (UA Vs) for short range, surveillance applications. The conceptual UA V designs included: a) a conventional puller-propeller aircraft, b) a sport model pusher-propeller, and c) a Vtail, pusher propeller. The objective of the study was to compare the performance characteristics of each conceptual design in order to select the most efficient design. To compare the performance characteristics of each design, theoretical performance analyses were conducted on each configuration. Computer models of each configuration were then simulated to validate the theoretical results and conduct further analysis. Results obtained from these tests …

Consolidation Manipulative Leaming Device (Cmld), Bronson Bowling

Opportunities for Undergraduate Research Experience Program (OURE)

This project intends to build a learning device which is manipulative based on the Spring Analogy that is used to establish the concept of consolidation. This hands-on tool will be used to model the process of soil consolidation. It will be in this manner that the students wiII be able to see how this transfer of stresses occurs instantaneously and with respect to time. Explaining the process of consolidation often takes more than one week of lecturing and only after working some examples is the concept really learned. Addressing this challenge by developing the device will streamline the introduction of …